WiringPi: Remove files that seem won't be used or already have not been used

Signed-off-by: Deokgyu Yang <secugyu@gmail.com>
Change-Id: I1189f950d0e51cbc4c569b1e7a1182dc5f8fe762

wiringPiD/daemonise.c

@@ -1,82 +0,0 @@
-/*
- * daemonise.c:
- *	Fairly generic "Turn the current process into a daemon" code.
- *
- *	Copyright (c) 2016-2017 Gordon Henderson.
- *********************************************************************************
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <syslog.h>
-#include <signal.h>
-#include <sys/stat.h>
-
-#include "daemonise.h"
-
-void daemonise (const char *pidFile)
-{
-  pid_t pid ;
-  int i ;
-  FILE *fd ;
-
-  syslog (LOG_DAEMON | LOG_INFO, "Becoming daemon") ;
-
-// Fork from the parent
-
-  if ((pid = fork ()) < 0)
-  {
-    syslog (LOG_DAEMON | LOG_ALERT, "Fork no. 1 failed: %m") ;
-    exit (EXIT_FAILURE) ;
-  }
-
-  if (pid > 0)			// Parent - terminate
-    exit (EXIT_SUCCESS) ;
-
-// Now running on the child - become session leader
-
-  if (setsid() < 0)
-  {
-    syslog (LOG_DAEMON | LOG_ALERT, "setsid failed: %m") ;
-    exit (EXIT_FAILURE) ;
-  }
-
-// Ignore a few signals
-
-  signal (SIGCHLD, SIG_IGN) ;
-  signal (SIGHUP,  SIG_IGN) ;
-
-// Fork again
-
-  if ((pid = fork ()) < 0)
-  {
-    syslog (LOG_DAEMON | LOG_ALERT, "Fork no. 2 failed: %m") ;
-    exit (EXIT_FAILURE) ;
-  }
-
-  if (pid > 0)			// parent - terminate
-    exit (EXIT_SUCCESS) ;
-
-// Tidying up - reset umask, change to / and close all files
-
-  umask (0) ;
-  chdir ("/") ;
-
-  for (i = 0 ; i < sysconf (_SC_OPEN_MAX) ; ++i)
-    close (i) ;
-
-// Write PID into /var/run
-
-  if (pidFile != NULL)
-  {
-    if ((fd = fopen (pidFile, "w")) == NULL)
-    {
-      syslog (LOG_DAEMON | LOG_ALERT, "Unable to write PID file: %m") ;
-      exit (EXIT_FAILURE) ;
-    }
-
-    fprintf (fd, "%d\n", getpid ()) ;
-    fclose (fd) ;
-  }
-}